CN2613121Y - T-shape rapid current extinguishing paraphase hole - Google Patents
T-shape rapid current extinguishing paraphase hole Download PDFInfo
- Publication number
- CN2613121Y CN2613121Y CN 03229757 CN03229757U CN2613121Y CN 2613121 Y CN2613121 Y CN 2613121Y CN 03229757 CN03229757 CN 03229757 CN 03229757 U CN03229757 U CN 03229757U CN 2613121 Y CN2613121 Y CN 2613121Y
- Authority
- CN
- China
- Prior art keywords
- phase reversal
- cambered plate
- paraphase
- phase
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a T typed flow eliminating phase reversal hole, comprising a phase reversal tube, which is characterized in that a phase reversal tube port is provided with a triangle shaped arc panel, the top angle of the arc panel is equipped inside the phase reversal tube, arc lines on two sides of the phase reversal tube are engaged with phase reversal tube walls, foam plastics are positioned on the empty chamber between the arc panel bottom and the phase reversal tube walls, the bottom line of the phase reversal panel goes up to the one third position of the phase reversal tube hole diameter, and the arc panel is provided with at least two via holes. The utility model has the advantages of effectively eliminating the hurried gas flowing sound and increasing the sound effect of the loudspeaker.
Description
Technical field
The utility model relates to a kind of paraphase hole of inverted phase type loud speaker, particularly a kind of T type rapid current extinguishing paraphase hole.
Background technology
Inverted phase type loud speaker in stereo set is applied at present, but more existing inverted phase type loud speakers are when the loud speaker violent oscillatory motion, will in phase-reversing tube, form quickly anxious air-flow, particularly at low frequency end, quickly the turbulent fluctuation meeting of stream produces very significantly air-flow hiss, influences the acoustics of loud speaker.
Summary of the invention
The purpose of this utility model is to solve in the prior art some inverted phase type loud speakers when the loud speaker violent oscillatory motion, can in phase-reversing tube, form quickly anxious air-flow, particularly at low frequency end, quickly the turbulent fluctuation meeting of stream produces very significantly air-flow hiss, influences the acoustic problem of loud speaker.The utility model design T type rapid current extinguishing paraphase hole, comprise phase-reversing tube, it is characterized in that: the cambered plate triangular in shape that has a slice to upwarp at paraphase mouth of pipe place, the drift angle of cambered plate is positioned at the phase-reversing tube inboard, the arc limit, both sides of cambered plate and paraphase tube wall coincide, cambered plate has foamed plastics down and in the cavity between the paraphase tube wall, and the base of cambered plate upwarps 1/3rd places to the phase-reversing tube pore diameter, has at least two through holes on the cambered plate.The utility model has the advantages that and to eliminate quickly anxious air-flow hiss effectively, improve the acoustics of loud speaker.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated, accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise phase-reversing tube 1 among the figure, it is characterized in that: the cambered plate triangular in shape 2 that has a slice to upwarp at 1 mouthful of place of phase-reversing tube, the drift angle of cambered plate 2 is positioned at phase-reversing tube 1 inboard, the arc limit, both sides 3 of cambered plate 2 coincide with phase-reversing tube 1 wall, be filled with foamed plastics 5 in the cavity 4 between cambered plate 2 times and phase-reversing tube 1 wall, the base 6 of cambered plate 1 upwarps to 1/3rd places of phase-reversing tube 1 pore diameter, has at least two through holes 7 on the cambered plate 1.During use, air-flow can not form quickly anxious air-flow at the mouth of pipe along the cambered plate smooth flow triangular in shape that upwarps of hyperbola, and the through hole 7 on the cambered plate 1 has the effect that absorbs noise, thereby can eliminate quickly anxious air-flow hiss effectively, improve the acoustics of loud speaker.
Claims (3)
1, T type rapid current extinguishing paraphase hole, comprise phase-reversing tube, it is characterized in that: the cambered plate triangular in shape that has a slice to upwarp at paraphase mouth of pipe place, the drift angle of cambered plate is positioned at the phase-reversing tube inboard, the arc limit, both sides of cambered plate and paraphase tube wall coincide, cambered plate has foamed plastics down and in the cavity between the paraphase tube wall
2, by the described T type of claim 1 rapid current extinguishing paraphase hole, it is characterized in that: the base of cambered plate upwarps 1/3rd places to the phase-reversing tube pore diameter,
3, by the described T type of claim 1 rapid current extinguishing paraphase hole, it is characterized in that: have at least two through holes on the cambered plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229757 CN2613121Y (en) | 2003-03-25 | 2003-03-25 | T-shape rapid current extinguishing paraphase hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229757 CN2613121Y (en) | 2003-03-25 | 2003-03-25 | T-shape rapid current extinguishing paraphase hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613121Y true CN2613121Y (en) | 2004-04-21 |
Family
ID=34165035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03229757 Expired - Fee Related CN2613121Y (en) | 2003-03-25 | 2003-03-25 | T-shape rapid current extinguishing paraphase hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613121Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786927A (en) * | 2016-08-31 | 2018-03-09 | 雅马哈株式会社 | Speaker system |
-
2003
- 2003-03-25 CN CN 03229757 patent/CN2613121Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786927A (en) * | 2016-08-31 | 2018-03-09 | 雅马哈株式会社 | Speaker system |
| CN107786927B (en) * | 2016-08-31 | 2020-03-31 | 雅马哈株式会社 | Loudspeaker system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |